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Finding the Fourth Proportional to 21,894.40, 32,814.60 and 14,874.40

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Solution

The fourth proportional to 21,894.40, 32,814.60 and 14,874.40 is: 22,293.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.40 : 32,814.60 = 14,874.40 : x
  2. Step 2: Convert to fraction form
    21,894.40/32,814.60 = 14,874.40/x
  3. Step 3: Cross multiply
    21,894.40x = 32,814.60 × 14,874.40
  4. Step 4: Simplify right side
    21,894.40x = 488,097,486.24
  5. Step 5: Solve for x
    x = 488,097,486.24/21,894.40
  6. Step 6: Final answer
    x = 22,293.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.